FS5815 Case Size:Â 46MM Movement:Â Chronograph Platform:Â FORRESTER CHRONO Strap Material:Â Leather Case Water Resistance:Â 5 ATM Case Material:Â Stainless Steel Case Color:Â Gunmetal Dial Color:Â Gray Strap Fashion Color:Â Amber Interchangeable Compatibility:Â 24MM Strap Width:Â 24MM Closure:Â Single Prong Strap Buckle Strap Inner Circumference:Â 200+/- 5MM Battery Type:Â SR920SW